Charge pipe has about 10K mi on it, never had any boost leak issues with it either. The forge DV's work like they should and they're quiet. No fast and the furious zip noises coming out of the car. I had Vargas stage 2 turbos in my old E92 holding 21lbs with out any issues.
It's a good set up that would cost $700 new.

I'm curious to know if the rare diffuser would fit the IS model. I'm in Chelsea and not too far from Medford, but would like to come by to check fitment. Please let me know what time and day works best for you. Thanks.

Charge pipe has about 10K mi on it, never had any boost leak issues with it either. The forge DV's work like they should and they're quiet. No fast and the furious zip noises coming out of the car. I had Vargas stage 2 turbos in my old E92 holding 21lbs with out any issues.
It's a good set up that would cost $700 new.

Do you know if the Forge DVs can be taken out and a BOV can be installed in it's place? I'm not too familiar with CPs but I'm guessing the cutouts are different

I'm curious to know if the rare diffuser would fit the IS model. I'm in Chelsea and not too far from Medford, but would like to come by to check fitment. Please let me know what time and day works best for you. Thanks.

Im not sure if the Msport diffuser would fit the 335is, I will check the forum or email Pyspeed, where I got the Arkym diffuser from, to see if that would work.
I'd hate for you to trek out here and not have it fit.

Do you know if the Forge DVs can be taken out and a BOV can be installed in it's place? I'm not too familiar with CPs but I'm guessing the cutouts are different

I think this pipe was set up for the forge DV's and probably the stock DV's as well. There are two cutouts where each DV sits on the pipe. I know on other aftermarket charge pipes The BOV style usually just uses one hole.